// 点击搜索框弹出热搜榜
function search(){
  let hot_nav = document.querySelector(".hot_nav");
  console.log(hot_nav);
  hot_nav.style.display = "block";
// run = false;
}
function off(){
let hot_nav = document.querySelector(".hot_nav");
hot_nav.style.display = "none";
}
